com.yahoo.bard.webservice.druid.util

Interface FieldConverters

All Known Implementing Classes:

SketchFieldConverter, ThetaSketchFieldConverter

public interface FieldConverters

An interface for transforming sketch aggregations into other sketch (post-)aggregations.

Method Summary

Modifier and Type	Method and Description
SketchAggregation	asInnerSketch(SketchAggregation candidate) Get the inner SketchAggregation when nesting.
SketchAggregation	asOuterSketch(SketchAggregation candidate) Get the outer SketchAggregation when nesting.
FuzzySetPostAggregation	asSketchEstimate(MetricField field) Get the candidate MetricField as a PostAggregation.
FuzzySetPostAggregation	asSketchEstimate(SketchAggregation candidate) Get the candidate SketchAggregation as a SketchEstimatePostAggregation.

Method Detail

asOuterSketch

SketchAggregation asOuterSketch(SketchAggregation candidate)

Get the outer SketchAggregation when nesting.

Parameters:

candidate - SketchAggregation to "convert"

Returns:

The SketchAggregation

asInnerSketch

SketchAggregation asInnerSketch(SketchAggregation candidate)

Get the inner SketchAggregation when nesting.

Parameters:

candidate - SketchAggregation to "convert"

Returns:

The SketchAggregation

asSketchEstimate

FuzzySetPostAggregation asSketchEstimate(SketchAggregation candidate)

Get the candidate SketchAggregation as a SketchEstimatePostAggregation.

Parameters:

candidate - SketchAggregation to "convert"

Returns:

The SketchAggregation as a SketchEstimatePostAggregation

asSketchEstimate

FuzzySetPostAggregation asSketchEstimate(MetricField field)

Get the candidate MetricField as a PostAggregation.

Parameters:

field - Metric field which can be aggregate or post aggregate

Returns:

The SketchPostEstimateAggregation based on field